Tweak GitHub IconJS
Tweak the icon of GitHub's website into white color & transparent background for better contrast on dark tab backgrounds etc. , especially for dark-themed browser. White, dark and black colors as well as white, dark, black and transparent backgrounds are all predifined in case of you need to modify them. Require SVG icon support.
<iframe> click to loadJS
Reduce some unnecessary resource consumption by suspend the <iframe>s with larger area. NOT lazyload; click a button instead anywhere in the whole <iframe> element so one won't mis-click.